Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Sasa, Kimikazu*; Honda, Maki; Hosoya, Seiji*; Takahashi, Tsutomu*; Takano, Kenta*; Ochiai, Yuta*; Sakaguchi, Aya*; Kurita, Saori*; Satou, Yukihiko; Sueki, Keisuke*
Journal of Nuclear Science and Technology, 58(1), p.72 - 79, 2021/01
Times Cited Count:8 Percentile:71.58(Nuclear Science & Technology)Shiina, Yoko*; Kinoshita, Ryo*; Funada, Shuhei*; Matsuda, Makoto; Imai, Makoto*; Kawatsura, Kiyoshi*; Sataka, Masao*; Sasa, Kimikazu*; Tomita, Shigeo*
Nuclear Instruments and Methods in Physics Research B, 460, p.30 - 33, 2019/12
Times Cited Count:2 Percentile:23.19(Instruments & Instrumentation)Matsunaka, Tetsuya*; Sasa, Kimikazu*; Takahashi, Tsutomu*; Matsumura, Masumi*; Satou, Yukihiko; Shen, H.*; Sueki, Keisuke*; Matsuzaki, Hiroyuki*
Radiocarbon, 61(6), p.1633 - 1642, 2019/12
Times Cited Count:2 Percentile:11.66(Geochemistry & Geophysics)Ota, Yuki*; Sueki, Keisuke*; Sasa, Kimikazu*; Takahashi, Tsutomu*; Matsunaka, Tetsuya*; Matsumura, Masumi*; Tosaki, Yuki*; Honda, Maki*; Hosoya, Seiji*; Takano, Kenta*; et al.
JAEA-Conf 2018-002, p.99 - 102, 2019/02
no abstracts in English
Matsunaka, Tetsuya*; Sasa, Kimikazu*; Takahashi, Tsutomu*; Hosoya, Seiji*; Matsumura, Masumi*; Satou, Yukihiko; Shen, H.*; Sueki, Keisuke*
Nuclear Instruments and Methods in Physics Research B, 439, p.64 - 69, 2019/01
Times Cited Count:2 Percentile:23.19(Instruments & Instrumentation)no abstracts in English
Satou, Yukihiko; Sueki, Keisuke*; Sasa, Kimikazu*; Yoshikawa, Hideki; Nakama, Shigeo; Minowa, Haruka*; Abe, Yoshinari*; Nakai, Izumi*; Ono, Takahiro*; Adachi, Koji*; et al.
Geochemical Journal, 52(2), p.137 - 143, 2018/00
Times Cited Count:68 Percentile:97.15(Geochemistry & Geophysics)Matsunaka, Tetsuya*; Sasa, Kimikazu*; Takahashi, Tsutomu*; Hosoya, Seiji*; Matsumura, Masumi*; Sueki, Keisuke*; Satou, Yukihiko
Dai-19-Kai AMS Shimpojiumu, 2016-Nendo "Jumoku Nenrin" Kenkyukai Kyodo Kaisai Shimpojiumu Hokokushu, p.76 - 79, 2017/06
To evaluate the radiological impact of the atmospheric C discharge from the Tokai nuclear facilities, a 80-year-old Japanese pine tree from Tokai, 1.8 km south-southwest of the Tokai Nuclear Power Plants (Tokai NPP and Tokai-2 NPP) and 1.4 km North-Northwest of the Tokai Reprocessing Plant (Tokai RP), was cored and each annual ring was measured for C. The C specific activities varied from 232.8 Bq kg C to 403.3Bq kg C in the tree rings formed during the periods 1954-2013. The specific activities in 1967-2010 are significantly elevated compared with the ambient background values, clearly indicating C discharges from the nuclear facilities during their normal operation. The excess C activities of 0.5-70.0 Bq kg C in 1970-2011 are positively correlated with the estimated annual C discharges of 0.1-1.2 TBq from Tokai NPP and Tokai-2 NPP with R of 0.66 (n = 38). These activity values of 70.0 Bq kg C were corresponding to an additional annual effective dose of 3.9 uSv via the food ingestion pathway in the study location.
Tsuchida, Hidetsugu*; Majima, Takuya*; Tomita, Shigeo*; Sasa, Kimikazu*; Narumi, Kazumasa; Saito, Yuichi; Chiba, Atsuya; Yamada, Keisuke; Hirata, Koichi*; Shibata, Hiromi*; et al.
Nuclear Instruments and Methods in Physics Research B, 315, p.336 - 340, 2013/11
Times Cited Count:3 Percentile:26.71(Instruments & Instrumentation)Kudo, Hiroshi*; Iwasaki, Wataru*; Uchiyama, Rumi*; Tomita, Shigeo*; Shima, Kunihiro*; Sasa, Kimikazu*; Ishii, Satoshi*; Narumi, Kazumasa; Naramoto, Hiroshi; Saito, Yuichi; et al.
Japanese Journal of Applied Physics, Part 2, 45(22), p.L565 - L568, 2006/06
Times Cited Count:14 Percentile:47.16(Physics, Applied)The first observation of the energy distribution of electrons emitted from solids bombarded by MeV atom clusters is reported. In the backward direction, using graphite and Si bombarded by C and Al (n 8), an appreciable suppression of electron emission has been observed at electron energies lower than 10 eV. Electron yield per atom decreases with increasing n, and becomes less than 50% at n 3, relative to the case of n = 1. The experimental results cannot be explained in terms of projectile stopping cross sections nor by the clearing-the-way effect. It is probable that the suppressed electron emission is a result of the suppression of the transport or surface transmission of the produced low-energy electrons, rather than of the suppression of ionization.
Tsuchida, Hidetsugu*; Majima, Takuya*; Tomita, Shigeo*; Sasa, Kimikazu*; Narumi, Kazumasa; Saito, Yuichi; Chiba, Atsuya; Yamada, Keisuke; Hirata, Koichi*; Shibata, Hiromi*; et al.
no journal, ,
Tsuchida, Hidetsugu*; Nakajima, Kaoru*; Yokoe, Junya*; Sugiyama, Motohiko*; Ota, Yushi*; Majima, Takuya*; Shibata, Hiromi*; Tomita, Shigeo*; Sasa, Kimikazu*; Hirata, Koichi*; et al.
no journal, ,
no abstracts in English
Tsuchida, Hidetsugu*; Majima, Takuya*; Tomita, Shigeo*; Sasa, Kimikazu*; Hirata, Koichi*; Shibata, Hiromi*; Saito, Yuichi; Narumi, Kazumasa; Chiba, Atsuya; Yamada, Keisuke; et al.
no journal, ,
no abstracts in English
Satou, Yukihiko*; Sueki, Keisuke*; Sasa, Kimikazu*; Minowa, Haruka*; Yoshikawa, Hideki; Fujiwara, Kenso; Nakama, Shigeo; Adachi, Koji*; Igarashi, Yasuhito*
no journal, ,
Radioactive particle including high density cesium were released caused by the Fukushima Daiichi nuclear disaster. In this study, we analyzed distribution of radioactive particle and its characteristic about obtained soils and dusts. As a result, radioactive particles were confirmed from soil sample. In particular, 100 micro meter in diameters particles were found at the point of north-northwest direction approximately 7km from the nuclear power plant. Found particles resembled an elementary composition and surface state of the particle found in the 20km northwest from nuclear power plant and Tsukuba.
Satou, Yukihiko*; Sueki, Keisuke*; Sasa, Kimikazu*; Minowa, Haruka*; Yoshikawa, Hideki; Fujiwara, Kenso; Nakama, Shigeo
no journal, ,
We separated radioactive particles from soil and dust sample obtained around Fukushima Dai-ichi Nuclear Power Plant. Separated all particles can categorize unit-1 and unit-2 origin. And Sb was detected from unit-1 origin samples. Moreover, radioactive particle was made up 80 weight percent silica.
Satou, Yukihiko; Sueki, Keisuke*; Sasa, Kimikazu*
no journal, ,
no abstracts in English
Tomita, Ryohei*; Matsunaka, Tetsuya*; Honda, Maki*; Satou, Yukihiko; Matsumura, Masumi*; Takahashi, Tsutomu*; Sakaguchi, Aya*; Matsuzaki, Hiroyuki*; Sasa, Kimikazu*; Sueki, Keisuke*
no journal, ,
no abstracts in English
Sueki, Keisuke*; Matsuo, Kazuki*; Sasa, Kimikazu*; Satou, Yukihiko; Yoshikawa, Hideki; Minowa, Haruka*
no journal, ,
no abstracts in English
Ota, Yuki*; Sueki, Keisuke*; Sasa, Kimikazu*; Takahashi, Tsutomu*; Matsunaka, Tetsuya*; Matsumura, Masumi*; Tosaki, Yuki*; Hosoya, Seiji*; Takano, Kenta*; Ochiai, Yuta*; et al.
no journal, ,
no abstracts in English
Hosoya, Seiji*; Sasa, Kimikazu*; Takahashi, Tsutomu*; Honda, Maki*; Satou, Yukihiko; Takano, Kenta*; Ochiai, Yuta*; Yamaguchi, Koji*; Sueki, Keisuke*
no journal, ,
no abstracts in English
Matsuo, Kazuki*; Sueki, Keisuke*; Satou, Yukihiko; Yoshikawa, Hideki; Minowa, Haruka*; Sasa, Kimikazu*; Matsunaka, Tetsuya*; Matsumura, Masumi*; Takahashi, Tsutomu*; Sakaguchi, Aya*
no journal, ,
no abstracts in English